Flash Flood Warning 54, NWS Tucson, AZ

Issued

Sep 3, 2012, 4:46 PM MST (23:46 UTC)

Expired

Sep 3, 2012, 6:45 PM MST

In force

119 min

Issued by

NWS Tucson, AZ

Area

Storm-based polygon

Flood severity

None

County Pima County, AZ

The Tucson radar (KEMX), 65 km from the middle of the area, began a volume at 23:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

172 
WGUS55 KTWC 032346
FFWTWC
AZC019-040145-
/O.NEW.KTWC.FF.W.0054.120903T2346Z-120904T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
446 PM MST MON SEP 3 2012

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA...

* UNTIL 645 PM MST

* AT 442 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAINFALL FROM A THUNDERSTORM OVER SOUTH CENTRAL PIMA
  COUNTY. THE HEAVY RAIN WAS IN THE ARIVACA AREA AND NORTH OF
  ARIVACA ALONG ARIVACA ROAD. RADAR RAINFALL ESTIMATES UP TO TWO
  INCHES OF RAINFALL HAS OCCURRED NORTH OF ARIVACA. 

* THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER
  MAINLY RURAL AREAS OF THE INDICATED COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 3196 11136 3197 11116 3153 11118 3153 11149

$$
ZELL

517 
WGUS75 KTWC 040030
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
530 PM MST MON SEP 3 2012

AZC019-040145-
/O.CON.KTWC.FF.W.0054.000000T0000Z-120904T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
530 PM MST MON SEP 3 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM MST FOR SOUTH
CENTRAL PIMA COUNTY...

AT 526 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE HEAVY RAIN FROM AN AREA OF THUNDERSTORMS OVER SOUTH CENTRAL
PIMA COUNTY. RADAR RAINFALL ESTIMATES FROM THIS AREA INDICATE THAT
OVER TWO INCHES OF RAIN HAS FALLEN IN PORTIONS OF THE WARNING 
AREA...MAINLY NORTHEAST OF ARIVACA...TO THE NORTHWEST OF ARIVACA 
ROAD. THESE STORMS SHOWED LITTLE MOVEMENT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3196 11136 3197 11116 3153 11118 3153 11149

$$
ZELL

162 
WGUS75 KTWC 040148
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
648 PM MST MON SEP 3 2012

AZC019-040155-
/O.EXP.KTWC.FF.W.0054.000000T0000Z-120904T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
648 PM MST MON SEP 3 2012

...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTH CENTRAL PIMA
COUNTY...

AT 645 PM MST...NATIONAL WEATHER SERVICE RADAR INDICATED THAT ONLY 
LIGHT RAIN CONTINUED ACROSS SOUTH CENTRAL PIMA COUNTY. THE THREAT OF 
HEAVY RAINFALL HAS ENDED. THEREFORE...THE FLASH FLOOD WARNING FOR 
SOUTH CENTRAL PIMA COUNTY HAS BEEN ALLOWED TO EXPIRE. 

HOWEVER...WITH THE EARLIER RAINFALL...EXPECT HEAVY FLOW IN NORMALLY 
DRY STREAMBEDS AND WASHES INTO THE EVENING HOURS.  

LAT...LON 3196 11136 3197 11116 3153 11118 3153 11149

$$
ZELL

Flash Flood Warnings in Arizona, 2012Every flash flood warning in 2012

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.